Skip PersistentIntTest on S- device

This class is only used in the service runs on T+ devices.
Thus run this test on S- device does not make senses.

Bug: 230289468
Test: atest ConnectivityCoverageTests:PersistentIntTest
      on S device
Change-Id: I97a29df17ef9ee9ab373655f045cdb5c820e06ef
Merged-In: I97a29df17ef9ee9ab373655f045cdb5c820e06ef
  (pure cherry-picked from ag/18486287)
1 file changed